<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>富文本编辑器</title>
    <script src="https://cdn.ckeditor.com/ckeditor5/26.0.0/classic/ckeditor.js"></script>
</head>
<body>
<h1>富文本编辑器</h1>
<form action="[URL]" method="post">
        <textarea name="content" id="editor">
            &lt;p&gt;This is some sample content.&lt;/p&gt;
        </textarea>
    <!--<p><input type="submit" value="Submit"></p>-->
</form>
<script>
    ClassicEditor
        .create( document.querySelector( '#editor' ) )
        .catch(function  (error)  {
        console.error( error );
    } );
</script>
</body>
</html>